This specification covers an external corrosion control system for aboveground shop fabricated steel tank floors. The system is a practical and economical means of extending the life of aboveground storage tanks for a minimum of thirty years on corrosive soil conditions, to an indefinite term in less severe environments. The design includes a safety factor that will allow for somewhat more than ordinary damage to the coating from shipping and handling and other accidental holidays.

This specification covers an external corrosion control system for aboveground shop fabricated steel tank floors. The system is a practical and economical means of extending the life of aboveground storage tanks for a minimum of thirty years on corrosive soil conditions, to an indefinite term in less s severe environments. The design includes a safety factor that will allow for somewhat more than ordinary damage to the coating from shipping and handling and other accidental holidays.